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Torque Limiting Extension Bars, How do they work?

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Old 02-25-2009, 09:47 AM
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Torque Limiting Extension Bars, How do they work?


How do torque limiting extensions work? Do they work?
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Old 02-25-2009, 09:53 AM
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They work very well as long as your impact gun is calibrated to 250#' torque. Anything more or less will result in inaccurate settings. They can only be uesd for installing lug nuts, not removing them.


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Old 02-25-2009, 10:24 AM
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but how do they work? There are no moving parts. Do they twist to absorb the impact beyond their rated torque?
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Old 02-25-2009, 10:40 AM
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yes, the steel in them essentially goes "dead" at the preset torque rating, and absorbs any further impact and torque from the gun
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Old 02-25-2009, 01:33 PM
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The unique design allows the length and diameter of the torque extension shaft to flex with each blow of the impact wrench once the specified torque is reached. Accurate to within 4%.
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